Kendra defends Playboy.

Kendra Wilkinson has NO SYMPATHY for the model suing Playboy ... telling TMZ Sports only an IDIOT would let someone hit a golf ball off a tee shoved in their butt. 

"That's HER fault," Kendra said ... before spending another minute ripping the model.

Elizabeth  Dickson is suing  Playboy for $500,000 after being hit on bottom with golf club while posing for picture.

She was accidentally whacked by DJ Kevin Klein as she lay on the grass with a golf tee between her cheeks.

She was left with a huge bruise and says she has suffered stress, pain and loss of earnings as a result of the injury.

The 28-year-old has now filed a lawsuit against Playboy Enterprises suing the company for more than $500,000.

In her claim she says she was invited to participate in the Playboy Golf Finals at a course in California in March 2012.

During the event she was invited to pose for a photo with DJ Kevin Klein.

''Plaintiff was requested to lie down and pose for a photograph with defendant Kevin Klein. The photograph was supposed to depict the plaintiff lying flat on her stomach with her buttocks partially exposed,'' the lawsuit reads.           

''A golf tee was then placed between the cheeks of her buttocks and a golf ball was balanced on top of the tee.''           

Klein was supposed to stand over Dickson and pose as though he were poised to hit the ball, the lawsuit says, but instead it is claimed that Klein ''swung the golf club and struck plaintiff on the buttocks causing her injuries and damages."           

Ms Dickson says she suffered severe bodily injuries - some of them permanent - pain, suffering, anxiety, worry, medical and incidental expenses, and loss of earnings and earning capacity.           

A spokeswoman for Playboy has not yet responded to a request for comment.